1,1,1-Trichloroethane
Weirton Area Water Board
1,1,1-Trichloroethane is a solvent and a degreasing agent used for manufacturing metal products and as ingredient in cleaners and aerosols. Exposure to 1,1,1-trichloroethane can harm the nervous system, liver and circulatory system.
10
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.173 ppb | 4 | 2 | ND - 0.430 ppb |
| 2015 | 0.167 ppb | 3 | 1 | ND - 0.500 ppb |
| 2016 | 0.250 ppb | 1 | 1 | 0.250 ppb |
| 2017 | 0.300 ppb | 1 | 1 | 0.300 ppb |
| 2018 | ND | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 200 ppb
The legal limit for 1,1,1-trichloroethane, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-29 | VOC_1402177-08A | 0.260 ppb |
| 2014-04-16 | VOC_1404K60-02A | ND |
| 2014-07-17 | VOC_1407N00-09A | ND |
| 2014-10-21 | VOC_1410R55-06A | 0.430 ppb |
| 2015-01-29 | VOC_1501U33-01A | 0.500 ppb |
| 2015-03-26 | VOC_1503Y19-01A | ND |
| 2015-03-31 | VOC_1504247-01A | ND |
| 2016-02-24 | 1602W01-01A | 0.250 ppb |
| 2017-12-20 | 17122830-05A | 0.300 ppb |
| 2018-04-23 | 18042813-02A | ND |